Type-writing machine.



2 PATENTED SEPT.1 1908. 72 A. F. DECKER. 4 TYPE WRITING MACHINE,

nrmcumx n'nn JUNE 6. Y

1907 2 sums-sum 1.

Hus ATTORNEY No. 897,272. PATBNTED SEPT. 1, 1908-. A. F. DECKER. TYPEWRITING-MACHINE. APPLICATION mum JUNE 6,1907.

{SHEETS-SHEET 2.

E 5 5 E N W H15 ATTEIRNEY shown as a simple attac UNITED sTAgEs PATENTOFFICE ADOLPH F. DEOKER, OF EVANSVILLE, INDIANA, ASSIGKOR TO WYGKOFF,SEAMANS 6:

BENEDICT, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Sept. 1, 1908.

- To all 1157mm it may concern:

.usuai pri .ting characters of the machine,

such for in'stance,.as a colon, and for leaving both hands or theoperator free for performing such work.

To the above and other ends which will hereinafter appear my inventionconsists in the features of construction, arrangements of parts andcombinations of devices to be icrcinaft-cr set forth in thespecification. and. particularly pointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicatecorresponding parts in the different views, F igure 1 is a verticalcentral frontto rear sectional vicv of a type'rriting machine embodyingm invention. Fig. 2 is a fragmentary detail si e view will parts insection showing some of the parts illustrated in Fig. 1 and with the sace key of the machine shown locked in the c )ressed position. Fig. 3 isan enlarged detai fragmcntar perspective view showing the locking late 1and some of the associated parts.

My invention in the iresent instance is funent applied to a N0. 6Remington mac ine without the neces- Sity of modifyin ray of thestructural features of said at china: but said attaclnucut may beapplied wil equal facility and effect to other styles: pcwrltiugmachine-s:

I have disv in the accompanying drawings sutiicicm of a D50. '3iivmingtmr machine to illustrate the use of my attaclc ment and toafford an understanding of the effect thereof on the machine.

The frame of the machine comprises a base 1 having a front cross bar 1which forms :1. part thereof, corner posts 2 and a top plate '3;Printing key levcrs'4 are provided with keys 5 and are fulcrumed on afulcrum bar 6 55 m the base of the machine. Each kcy lcvcr is providedwith a restoring spring 7. i Links 8 are connected to the key levers andto the type bars 9 which are pivoted at 10 to type bar hangers 11secured in the usual manner to the top late of the machine. The usual 5ace key evers 12 at the sides of the cliine are pivoted on the fulcrumbarv6 and are connected at their forward ends by a transverselyextending space bar or key 13 through angularly depressed connectingbrackets 14 or otherwise.

Extending beneath the system of key levers 4 and the space keys 12 is auniversal bar 15 connected at its ends to upwardly extending links 16provided with hook-like members 17 at their upper ends for cooperationwith the usual transverse bar 18 con-- nected at 19 to a forwardlyextending arm 20 of a dog rocker, the rock shaft of which is pivoted at21 to a depending bracket 22 sec-ured to the top plate of the machine.An

upwardly extending arm 23 of the dog rocker carries a fixed feed dog 24fixedly secured to the arm 23 and a loose dog 25 pivoted to the arm 23at 26 so as to vibrate in the general direction of the travel of thecarriage. A spring 27 cooperates with the loose feed dog to turn itaround its pivot 26. spring 27 is connected at one nd to the bracket .22and at the other end to the dog rocker so as to move the dog rockerandjhe parts connected therewith to normal position. The feed dogs 24and 25 cooperate with a feed rack (circular or otherwise) which in thepresent instance is in the form of an escapement wheel 28. Thecscapcmcnt wheelis opcratively connected through the usual pawl andratchet mechanism (not shown) to a shaft 29 which rotates in a hearing30 secured to the top plate of the machine and is p" .Ided at itsforward em. with a feed pimon 31. A feed rack 32 is connected to arms 33pivoted at 34 to a carriage truck 'ihc carriage truck carries rollers 36which cooperate with a guide rod or rail 37 and is l kcwisc pro vidcdwith a rcarwardly projecting arm 38 which cooperates with a sccoud iiscdguide rod 39. Links 40 are pivotcd at 41 to the carriage truck and at 42to a platen frame 43. The forward )ort-ion of thc platen frame carries agroove roller 44 which cooperates with a shift rail 45 carried bypivoted arms 46 and by means ofwhich the plat- .lfm: may be shifted tochange the case position of the cylindrical rotative A restoring.

. platen -17 carried thereb The platen is connected at one end with aline 5 acing wheel -18 with which a spring dctcnt r0 ler 49 CO6 crates.A finger wheel 50 is secured to a p at-en shaft 51 at each end thereof.Line spacing devices {not shown) of the usual construction cooperatewith the line spacing wheel 48 to ctiect a movement thereof. The partsthus far described constitute portions of the well-known No. 6 Remingtonmachine and the operation thereof is well understood.

The locking device of mv present inven tion is best shown in Fig. 3 fromwhich it will be seen that a bracket plate 52 is secured by screws 53 tothe rear side of the front. cross bar 1 of the base of the machine andat the left hand side thereof. Ears 54 are struck up from this bracketplate and are perforated to receive a pivot 55 to pivotally connect alocking latch 56 to the ears. The locking latch isthus pivoted to swingin a horizontal plane and into and out. of the path of the horizontalportion 14 of the left-hand bracket 14 which connects the space key orbar 13 to its left-hand lever 12. The locking latch 56 normally extendssubstantially parallel with the space bar or key and is provided with anupwardly extending bentportion 57 which constitutes a, finger piece orhandle to facilitate the movement of said locking device around itspivot. The parts are so constructed and arranged that. when the spacekey is depressed as shown in Fig. 2 and thelocking latch is swung on itspivot .53 over the'member 34 as shown in Figs. 1 and 2, the space keywill be locked in the depressed position and said space key and theparts controlled thereby cannot return to normal posit-ion until thelatch is released or swung back to the position shown in Fig. 1 where itis out of the path of the space key and" its carrying members 14. Bydepressing the space key and locking itin the position shown in Fig. 2the loose (log25 will be moved outof engagement with the escapementwheel and the listed dog 2-4 will be moved into engagement therewithwithout the carriage having been advanced to ctlect aletter spacemovement thereof, it being understood that the est-.apement mechanism ofthe No. (3 Remington machine andin l act most. escapement mechanisms arewhat are known as ordinary escapcments and do not etl'cct a release ofthe carriage until the return stroke of the key. The fixed dog being inengagement with the escapemcnt wheel locks the escapement wheel and thecarriage again t movement in either direction. The depression of thespace key likewise carries the universal bar 15 down below the paths ofmovement of the printing key levels 4 so that an'actuation of any of thekey levers 4 at this time will actuate the associated type bar withoutatl'ecting the escape-merit mechanism and without producing a letterspace movement of the carriage. The carriage being lockedboth hands ofthe operator are free to manipulate the machine. Thus, the oierator mayemploy one hand to actuate the key of the colon mark, for example, andthe other hand may be employed to turn the platen through the fingerwheel 51 or through the usual line spacing mechanism. The printingoperation and turning of the platen a tooth space distance at a time isetlected alternately and there being no feed of the carriage at thistime; the imprint of the onions will occur one beneath another and avertical dotted line will be produced on the paper. \Vhen the operatorhas finished writing the vertical line the latch 56 may be shifted tothe inoperative position shown in Fig. 1,

which will result in the space key being released, and the s ace key,universal bar and dog rocker wi berestored to normal positions and thewriting may he proceeded with.

While I prefer to employ a locking latch of the general characterdescribed to co operate with the space key or the carrier therefor tosecure the results specified, from a broad aspect of my invention anymeans for locking the escapement mechanism or carriage feed mechanismout of operation to prevent a feed movement of the carriage and withoutall'ectin the operation of the rinting instruments ities may beemployed? 1 It will be seen that my invention is useful wherever it isdesired to print characters without effecting a feed of the carriage aswhen vertical dotted lines or the like are to be written on the pa er asin the )reparation of legal documents or making '01-: headings or thelike.

Various changes may be made without departing from the spirit and scopeof my invention.

What I claim as new and desire to secure b y Letters Patent, is

In a t-ypematmg machine, the combination of a feed rack, a, holding dog,space key levers at the sides of the machine, a space bar extendingtransversely of the machine and connected to said levers by depressedbrackets; a latch pivoted to the front bar of the base frame andnormally occupying a position substantially parallel with said space barbut adapted to be swung to engage the de ressed bracket when the spacebar is pushe down and thus lock the holding dog and feed rack inengagement.

Signed at Evansville, in the county of Vanderburg and State of Indianathis 29th day of May A. D. 1907.

ADOLFH F. DECKER.

'itnesses i Fnaxx E. Gone, Panel C. Horton's-

